import unittest
import simulation

class SimulationTest(unittest.TestCase):
    """Test case for the 'simulation' module"""
    
    def test_singleton(self):
        e1 = simulation.get_simulation()
        e2 = simulation.get_simulation()
        self.assertEqual(e1, e2)
        
         
        
        
    


if __name__ == '__main__':
    unittest.main()
    
def get_suite():
    return unittest.makeSuite(SimulationTest)
